Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.1.7x + 12.6y - 4.7z = 1.95.0x - 7.0y - 1.2z = -4.83.1x + 4.0y - 3.5z = 11.8

A. {(-94.5, -40.1, -143.3)}
B. {(-34.6, -14.7, -52.4)}
C. {(-23.0, -9.8, -35.0)}
D. {(57.6, 24.4, 87.4)}


Answer: C

Mathematics

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Solve for the missing values. Round money to the nearest cent, rate to the nearest tenth of a percent, and time to the nearest day.Principal: $3743Interest: Rate: 9.8%Time: 217 daysMaturity value: 

A. $208.03; $3951.03 B. $224.22; $3967.22 C. $228.13; $3971.13 D. $221.11; $3964.11

Mathematics

Sketch the graph of the equation. ? ?

A.
B.
C.
D.

Mathematics

Factor the polynomial function f and find all real roots of f. f(x) = 3x3 - x2 - 30x + 10

A. f(x) = (x + 3)(x2 - 10); roots: -3, , and -
B. f(x) = (3x + 1)(x2 - 10); roots: - , and - 
C. f(x) = (3x - 1)(x2 - 10); roots: , and- 
D. f(x) = (x - 3)(x2 - 10); roots: 3, , and -

Mathematics

Find the inverse, if it exists, for the matrix.

A.

B.

C.

D.

Mathematics